Journal of Wind Energy (풍력에너지저널)

Korea Wind Energy Association (한국풍력에너지학회)
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Effects of Design Parameters on the Frictional Coefficient of Clamping Pads for Self-Climbing Crane systems

자력 승강식 크레인의 클램핑 패드 마찰계수에 미치는 설계변수 영향

  • Sang-Hyun Park ;
  • Su-Min Lee ;
  • Youngjae Yu ;
  • Sang-Rai Cho
  • 박상현 ((주)울산랩) ;
  • 이수민 ((주)울산랩) ;
  • 유영재 ((주)울산랩) ;
  • 조상래 ((주)울산랩)
  • Received : 2023.08.22
  • Accepted : 2023.11.30
  • Published : 2023.12.31
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Abstract

A self-climbing crane (SCC) system is under development for the installation and maintenance of wind turbines. It can move vertically along the wind turbine tower by itself. One of the key components of the SCC system is the clamping pad to maintain a safe position on the wind turbine tower. The SCC system can maintain its position on the tower from the frictional force generated between the surfaces of the clamping pads and the tower. If the frictional force provided by the clamping pads are insufficient, the SCC system cannot stay in the vertical position on the tower. Therefore, the development of clamping pads with sufficient frictional force is very important for the SCC system. At the same time, the operation of the SCC system should not damage the paint coating of the wind turbine tower. In order to verify that the frictional force is sufficient and that frictional and compressive forces do not cause damage to the paint, a number of combined compression and shear loading tests were conducted using a test device prepared for this study. The details regarding the test specimens, test procedure, and test results are summarized in this paper.

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Acknowledgement

본 연구는 산업통상자원부(MOTIE)와 한국에너지기술평가원(KETEP)의 지원을 받아 수행한 연구 과제입니다(No. 20213030020160).

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